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1:2,000,000-scale Hydrologic Units of the United States

January 1, 1999

This data set has been superseded by huc2m. This file contains hydrologic unit boundaries and codes for the conterminous United States along with Alaska, Hawaii, Puerto Rico and the U.S. Virgin Islands. It was revised for inclusion in the National Atlas of the United States of America, and updated to match the streams file created by the USGS National Mapping Division (NMD) for the National Atlas of the United States of America. For the most current data and information relating to hydrologic unit codes (HUCs) please see http://water.usgs.gov/GIS/huc.html. The Watershed Boundary Dataset (WBD) is the most current data available for watershed delineation. See http://www.nrcs.usda.gov/wps/portal/nrcs/main/national/water/watersheds…

Publication Year 1999
Title 1:2,000,000-scale Hydrologic Units of the United States
DOI 10.3133/70046629
Authors John Watermolen
Publication Type Report
Publication Subtype USGS Unnumbered Series
Index ID 70046629
Record Source USGS Publications Warehouse
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